Ecosystems Stem Case

Quiz
•
Science
•
9th Grade
•
Hard
+1
Standards-aligned
Charles Martinez
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A short plant with a thick, fleshy stem, extensive roots, and a short blooming period would MOST likely be found in which of the following environments?
prairie
desert
coniferous forest
deciduous forest
Tags
NGSS.MS-LS2-1
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Which of the following BEST explains what will occur when a population grows larger than the carrying capacity of its environment?
The emigration rate will decrease.
The competition rate will decrease.
The birth rate will increase.
The death rate will increase.
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
An increase in which ecosystem factor could cause a population decline in a bird species?
emigration
immigration
number of births
amount of food
Tags
NGSS.MS-LS2-1
NGSS.MS-LS2-4
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Dall sheep have adapted to live in alpine tundra ecosystems. Alpine tundra has cold temperatures, steep terrains, and limited availability of food sources. Which BEST explains what would happen to the Dall sheep if the alpine tundra ecosystem became much warmer?
There would be an increase in predators moving into the ecosystem.
Sheep populations would move down the mountains to a new habitat.
Environmental stressors would increase the fitness of the sheep.
Genetic variability would increase due to a low carrying capacity of the ecosystem.
Tags
NGSS.MS-LS2-1
NGSS.MS-LS2-4
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
When high winds knocked down pine trees in a wooded region, it created a gap in the crowded canopy and allowed sunlight to fall on the ground. The increased sunlight allowed a dense growth of raspberry plants which protected young pine seedlings from being eaten by herbivores. Over time, the pine seedlings grew and blocked sunlight from falling on the woodland floor, thereby preventing growth of more raspberry plants. Which of these terms BEST describes the process of change observed in this woodlands community
adaptation
cooperation
natural selection
ecological succession
Tags
NGSS.MS-LS2-1
NGSS.MS-LS2-3
NGSS.MS-LS2-4
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
The Kalij pheasant is a game bird that was introduced to Hawaii in the 1960s. It is commonly found in the Hawaii Volcanoes National Park. In order for the population of the Kalij pheasants in the park to remain in dynamic equilibrium, which must occur?
The food sources must be able to support maximum population sizes.
The birth and death rates must remain approximately equal.
The population must be exported to other areas of Hawaii.
The population must grow exponentially each year.
Tags
NGSS.MS-LS2-1
NGSS.MS-LS2-4
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
A population of baboons has access to plenty of food, shelter, and space to live but has an inadequate supply of water. Which of these BEST defines the water in this case?
limiting factor
limiting reagent
Darwinian shortfall
biochemical constraint
Tags
NGSS.MS-LS2-1
NGSS.MS-LS2-4
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